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Total: 101, showing: 1 – 20
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In reply to:

AV Janus: This article is in some strange loop.
DPR says see more on cactus page, thaz page shows a few pixs an "view more details" link redirects here??

Where is the info that this supports wireless radio TTL?

Uh, well not really flash exposure comp, it's just remote manual power control. The menu system is built into the V6 base unit though, not the camera. There are four groups A,B,C, and D, and you can adjust each group independently, or adjust all groups together in parallel. (e.g. You might set group A at 1/4th power, and group B at 1/8th power, and group C at 1/16 + 0.3. After a test shot you might decide that the whole setup needs to come up a stop, and with one turn of a dial, you can bring group A up to 1/2, group B up to 1/4th, and croup C up to 1/8th +0.3)
You can also turn groups on and off, all from the camera position. This is great if you want to see the contribution of an individual light/group. It even allows the user to make adjustments in 1/10th stop increments if they desire (though it does not force one to do so).

Direct link | Posted on Dec 10, 2014 at 03:39 UTC
In reply to:

akexandrevision: Nice to see finally a Wireless trigger solution for Olympus & Panasonic cameras however I am still confused on some features on this new Cactus V6.

Firstly, Does this support TTL on my Olympus cameras (OMD-EM1, E-30 and E-P3)?
I mean can I set my flashes (FL-50R and Fl36-R) on TTL and shoot on TTL or this is only working in manual mode with full control from the trigger on each single Flashes?

Secondly:Can this transceivers wake up the flash from the sleep mode?

thirdly, what is the maximum Sync Speed I can use on the Transceivers.

I appreciate If someone could clarify these for me, I could not find any thing related to my questions on Cactus website.

It's best to think of the Cactus V6 as a manual flash solution. It just happens to exploit the flashgun's TTL circuitry in order to work it's magic. No TTL data is transmitted from the on-camera unit to the remote units, although you can pass TTL data to a hotshoe mounted flash as long as it speaks your camera's proprietary flash language.

The wake-up function may be system dependent, but it is likely that firing a test flash will bring most flashguns out of hibernation.

The maximum speed the Cactus system will relay a signal is 1/1000th, but you will still be limited by your camera's maximum sync speed.

And since you'll probably ask, the V6 does not support true HSS, but it does have a mode called "sympathetic flash" where the V6 will "chime in" with a burst a few milliseconds after it sees a preflash causing the flash tail to illuminate the shot. This is similar to what PocketWizard calls "hypersyncing".

Direct link | Posted on Dec 8, 2014 at 00:55 UTC
In reply to:

AV Janus: This article is in some strange loop.
DPR says see more on cactus page, thaz page shows a few pixs an "view more details" link redirects here??

Where is the info that this supports wireless radio TTL?

No, you are not comprehending something. The V6 does not just send a "fire now" command the way ordinary manual triggers do. It sends a "fire now" command, and then the base unit uses predetermined timings to send a "stop firing" command through the TTL circuitry several milliseconds later. That's why it needs to know what kind of flashgun is attached. The result is that the user can control the output of the lights from the camera's position.

Cactus is not the first to try this. Radiopopper uses the same TTL circuitry in the RP JrX system to achieve the same effect, but the controls on that system are not particularly precise or repeatable compared to the Cactus.

It really is a revolutionary system for those who take the time to understand it's potential.

Direct link | Posted on Dec 8, 2014 at 00:37 UTC
In reply to:

AV Janus: This article is in some strange loop.
DPR says see more on cactus page, thaz page shows a few pixs an "view more details" link redirects here??

Where is the info that this supports wireless radio TTL?

It does not. It supports wireless manual control via old TTL circuitry.

Direct link | Posted on Dec 2, 2014 at 16:11 UTC

That's weird, I've been using my Metz 58 AF2 with my Cactus V6s for months. I wonder what they added?

Direct link | Posted on Dec 2, 2014 at 16:10 UTC as 4th comment
On Pentax launches K-S1 Sweets Collection article (231 comments in total)

Can I please just have my full frame?

Direct link | Posted on Oct 23, 2014 at 03:16 UTC as 69th comment | 1 reply
On Very flashy: Ricoh unveils Pentax K-S1 DSLR article (206 comments in total)

Pentax users: "We want a professional full frame!"

Ricoh's Marketing Dept.: "What that you say? You want a hideous monstrosity that looks like we grafted a K mount mirror box on a Sony NEX body and added some neon lights for good measure?"

Pentax users: "No, No!! A professional full frame! We don't see how you could even begin to misinterpret that, there's no way we could be any more clear."

Ricoh's Marketing Dept.: "You sure? It comes in different colors."

Pentax users: "Yes, we're freaking sure!"

Ricoh's Marketing Dept.: "Oh... well how bout an old Q in a new body?"

Pentax users: "NO!! We didn't want that to being with!"

Direct link | Posted on Aug 28, 2014 at 03:05 UTC as 54th comment
In reply to:

NFG: I've been shooting with these for a month and a half, and they're brilliant. I use them in the studio and on location, with a mix of SB-28, SB-800 and the Cactus RF60. Totally reliable, great range and packed with features.

The Cactus V6 has no idea what your ISO is, though it can pass the information along to a flash connected to the hotshoe. The only command the V6 relays to remote flashes/receivers at the time of exposure is "fire now". It's the receivers that do the math, they tell the flash to turn on for a certain number of milliseconds, and then quench the power at the correct time as determined by the pre-set power level. The quench timings are unaffected by the camera's ISO, but of course that means that the user must work out their own exposures.

In other words, they can't screw up the exposure due to the ISO because they don't deal with that variable.

Direct link | Posted on Jul 26, 2014 at 03:33 UTC
In reply to:

Anesh Pather: wonder if this will work on an FZ1000 or RX10

It will work on just about any camera with a center pin hotshoe, or a PC sync port. The flashes that you use though will need to support Canon, Nikon or Pentax analog TTL. There is some limited support for digital TTL flashes for those brands, but I think at the moment, the pin layout will prohibit the use of Sony or Panasonic-compatible flash units. Perhaps in the future, but Cactus will need to redesign the hotshoe and foot.

In the mean time however, you can scoop up old analog TTL flashes for next to nothing. The V6 can learn the timings if a profile does not already exist.

Direct link | Posted on Jul 25, 2014 at 17:25 UTC
In reply to:

Chris43: Why don't they support Sony flashes in the same way as the other makes?
I've got a RX10 and a HVLF-58AM, which work well together with the required adaptor, but there is no easy or flexible Sony wireless solution to be able to use the flash off camera.

It's a problem of pin location as much as anything. Cactus had to design a hotshoe foot that had contacts for Nikon and Canon flashes for obvious marketing reasons. Pentax happens to use the same pin locations at Nikon so I think they added Pentax support because they could physically accomplish it with no new engineering.

If you look at the layout though, I don't think they'd have room to include contacts for Sony's triangular pin configuration, and of course the Minolta layout doesn't have the central pin needed to sync to most manual flashes. Maybe once they've recouped their R&D money from the V6s, they'll release a Sony compatible version. They have a suggestions section of their user forums, you should mention it's something you'd like to see.

Direct link | Posted on Jul 25, 2014 at 16:56 UTC
In reply to:

Michael Meissner: No Olympus or Panasonic support. Sigh..... Also, no Sony support.....

@ Michael Meissner
BarnabyJones is probably correct (I don't own an Olympus to confirm), but mixing manual flash with modern preflash TTL is probably not something that most folks should attempt anyway.

The Cactus V6 is using the old analog quench timings like the Radiopopper JrX, but modern TTL uses a preflash to estimate the proper exposure. The problem is, the camera will see the preflash and make it's judgement, but it won't take into account the extra light that will hit the scene from the manual flashes during the main flash event.

It might be better to use a flash on the hotshoe that has a built-in light sensor, and use it in A (aka Auto/Auto-Thyristor) mode as an on-axis fill flash. That type of flash unit will work with just about any brand of camera.

Direct link | Posted on Jul 25, 2014 at 16:33 UTC
In reply to:

armandino: it is unclear to me if high speed sink is supported

It has what they call "Sympathetic" High Speed Sync mode. When set to that mode, the receiver will look for the preflash, then wait for a specified duration in milliseconds, and then begin firing the pulses as the curtains begin to travel.

You will still need one HSS flash in the equation (though you can have more), and in the case of Pentax, it will need to be hardwired to the hotshoe, as the camera won't allow you to go above the sync speed if it cannot detect a HSS flash.

Direct link | Posted on Jul 25, 2014 at 16:19 UTC

Folks need to understand that, although TTL flashes are required for the remote power controls to work, this is not a TTL system, it's manual.

I own a set of V6 transceivers and two RF60 flashes, and they are wonderful. For less than $400 US, I was able to fulfill my life-long dream of not having to walk over to the flash to adjust the power. I guess I'm weird like that.

Direct link | Posted on Jul 25, 2014 at 16:08 UTC as 5th comment
In reply to:

BarnabyJones: Despite what the official website states, TTL passthrough does not work with Olympus. Tested on the E-m1 with both the FL-600r & Metz 58 AF-2. Additionally, flash profiling is quite limited so unless you're with Nikon or Canon odds are your flashes won't be compatible.

I'm not seeing where they claim TTL pass through works for Olympus. To have any hope of working, the pins on the hotshoe would need to be in the correct physical location to make contact.

The remote power control feature will work with an Olympus camera though, or Fuji, or Panasonic, or Leica, or Holga, or Samsung, or Sigma.... Anything with a center pin for sending a sync command, it's just the flashes that mount of the receiving unit will need to support analog Canon, Nikon or Pentax TTL. It's using the quench timings to achieve output power control.

Direct link | Posted on Jul 25, 2014 at 16:02 UTC
On Pentax O-FC1 FluCard: The wireless details article (123 comments in total)
In reply to:

Polytropia: "FluCard" ... really? What's next, the "AIDScard" ...?

Someone in the Pentax marketing department needs to find another job.

I think the idea was to go with something catchy sounding like the *ist DL2

Direct link | Posted on Mar 8, 2014 at 03:15 UTC
On Adobe expands Photoshop and Lightroom offer article (628 comments in total)

So instead of paying 50 bucks, a month to have my credit card stolen, now I can have it stolen for only 10 bucks a month? Where do I sign up?

Direct link | Posted on Nov 21, 2013 at 18:10 UTC as 196th comment
In reply to:

Pixnat2: But arguing in DPR Forums cancels it all ;-)

Hahahaha!! It true!!

Direct link | Posted on Oct 30, 2013 at 13:48 UTC
On Pentax K-3 preview (959 comments in total)
In reply to:

olypan: Great camera. Terrible lenses.

LOL! Because we all know that the only true measure of a lens is how it's handles 2 dimensional test charts.

Direct link | Posted on Oct 9, 2013 at 19:23 UTC
On Pentax K-3 preview (959 comments in total)
In reply to:

Zvonimir Tosic: Ricoh to Pentax is now same as what Asahi Optical was to Pentax. Neither "invented" Pentax, but bought it. Remember the times when Asahi letters were *engraved* above the Pentax letters on every single pentaprism, on millions of cameras?
At least Ricoh is more subtle and is signing off at the back of the camera. So read it as a signature: "We at Ricoh, now recognised as world leaders in sustainable technologies and brand stewardship, are proud to deliver to you this Pentax camera, made to excite you and exceed your expectations".
Ricoh is recognised as one of most ethical companies in the world; please check your facts guys.

Actually The Asahi Optical Company Ltd. changed their name to Pentax in 1957 after their ground-breaking pentaprism reflex camera "The Pentax". AOCO started making lenses way back in 1919, only two years after Nikon and a decade before Canon.

Direct link | Posted on Oct 9, 2013 at 07:11 UTC
On Pentax K-3 preview (959 comments in total)
In reply to:

atamola: Why, why?
going over the specs... nice...nice... good... very good ... and bang! sync speed 1/180!! why Ricoh why?
Just that point. Puzzling to me.

I agree with Brendon, even 1/250th is too slow for what I do. 1/500th would be helpful, but 1/1000th would be ideal. Maybe Pentax will address the problem with leaf shutter lenses, they've done it in their medium format cameras and in the Q via the K-mount adapter.

Direct link | Posted on Oct 8, 2013 at 19:25 UTC
Total: 101, showing: 1 – 20
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